Internet and its Applications - By Amresh Tiwari (SGEI)

This session is helping hand for those who wants to know more about Internet and its components.

1. Internet and Its
Applications
By-AmreshTiwari(SGEI)

2. Computer Network
Acomputernetworkisa
collectionofcomputersandother
hardware components
interconnectedbycommunication
channels(cablesorsatellites)that
allowsharingofresourcesand
information.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

3. Some of the advantages associated with
networking are:
•Data Sharing: Users can send text files, spread sheets, documents,
presentations, audio files, video files, etc. to other users.
•Hardware Sharing: Hardware components such as printers, scanners, etc. can
also be shared.
•Internet Access Sharing: You can purchase a single Internet connection and
share it among other computers in a network.
•Usage of network based applications: Such as web browsers, email clients,
chat application, audio & video calling, etc. is another advantage.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

4. Types of Network
A computer network can be categorized by their size. Acomputer
networkis mainly offour types:-

5. By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

6. What is Internet?
•Internet= International Network
•The Internet is a global system of
interconnected computer networks that
use the standard Internet protocol suite
to serve billions of users worldwide. It is
a network of networks that consists of
millions of private, public, academic,
business, and government networks.
•Internet is a decentralized system.
•The Internet is the largest encyclopedia
for all age groups.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

7. “Internet is a decentralized system”. Justify this
statement.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)
Each connected individual can communicate with anyone else on the internet, can publish ideas, and can
sell products with a minimum overhead cost. So that we can say that Internet is a decentralized system
not a centralized system like traditional broadcasting media, such as radio and television.
With the help of the World Wide Web, a popular service on the Internet, you can now access information
from a vast pool of resources in a few seconds.

8. Uses of the
Internet
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

9. 1. You can use the Internet to communicate with
peopleall around the world instantaneously. The
messages you send over the Internet can reach
any part of the world in just a few seconds.
2. The Internet also helps you get the latest
information .on current events. Many leading news
channels use the Internet as the medium to provide
updated news.
3. You can use the Internet to
search for information on
any specific topic, such as
history of computers.
4.Youcantakeanycourseof
yourchoiceandregisterfor
onlinecertificationexams
overtheInternet.
5.TheInternetcanalsobe
usedasasourceof
entertainment.Youcanlisten
tomusic,playgames,watch
movies,orsharepictures.
6. You can buy and sell products, such as books
and electronic goods, over the Internet. You can
also pay for these goods online by specifying your
credit card details.
7. You can use the Internet to perform
banking transactions, such as viewing details
of your bank account and transferring money
from one account to another.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

10. World Wide Web
•World Wide Web (abbreviated as
WWWor W3, commonly known as the
Web), is a system of interlinked
hypertext documents accessed via the
Internet. With a web browser, one can
view web pages that may contain text,
images, videos, and other multimedia,
and navigate between them via
hyperlinks.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

11. Getting access to the Internet
•To use the Internet, you need an a
computing device, a connection device
(such as a modem ) Internet
connection.
•Internet connections are provided by
Internet Service Providers such as Bharat
Sanchar Nigam Limited (BSNL), Airtel,
MTS, Vodafone, Tata Docomo, etc.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

12. Bandwidth
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)
Bandwidth is the amount of data that can be transmitted over a network in a
certain amount of time.
Bandwidth is measured in Mbps (megabits per second), Kbps (kilobits per
second), or bps (bits per second). If the bandwidth of a network is 1 Mbps, then 1
megabit of data can be transmitted over that network in 1 second.
The actual rate of transfer of data will vary depending on the ISP’s equipment,
the type of Internet connection, and the number of people using the same
connection at one time.

13. Internet Browser or
Web Browser
•Internet Browser is the software,
which helps you to access web pages
from various websites.
•There are various Internet browsers
available such as Google Chrome,
Mozilla Firefox, Safari, Opera and
Internet Explorer.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

14. What is Internet Service
Provider (ISP)?
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

15. Internet Service Provider
AnInternetserviceprovider
(ISP)isanorganizationwhich
providesyouwithaccessto
theInternetviaadial-up
(usingmodem)ordirect(hard
wired) or wireless
connection.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

16. Types of Common Internet Connectivity
•Choosing connectivity depends on the availability of a particular technology, speed and connection type in your area.
Different types of Internet connectivity categorized into wired and wireless are:-
, 4G
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

17. Dial-up
•Dial-upInternetaccessisaformofInternetaccessthat
usesthefacilitiesofthepublicswitchedtelephone
network(PSTN)toestablishaconnectiontoanInternet
serviceprovider(ISP)viatelephonelinesusingadevice
calledMODEM.Usersdialaparticularnumberprovided
bytheISPandgainaccesstotheInternet.
•Dial-upconnectionsareextremelyslowandinmost
cases,itisreplacedbyahighspeedconnectionsuchas
DSLorCableModem.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

18. Digital subscriber line(DSL):
•Digitalsubscriberline(DSL)provideInternetaccess
bytransmittingdigitaldataoverwiresofalocal
telephonenetwork.DSLserviceisdeliveredalong
withwiredtelephoneserviceonthesame
telephoneline.Onthecustomerpremises,aDSL
filterremovesthehighfrequencyinterference,
enablingsimultaneoususeofthetelephoneand
datatransmission.ForusingaDSLconnection,you
needaDSLmodemandasubscription.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

19. Cable Internet Access
•Cable Internet Access is a form of broadband
Internet access that uses the cable television
infrastructure. Cable Internet Access is
provided through existing cable TV networks;
this is similar to DSL that is provided over
existing telephone lines.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

20. WiMAX
•WiMAX(WorldwideInteroperabilityfor
MicrowaveAccess)isawireless
communicationsstandarddesignedtoprovide
mobilebroadbandconnectivityacrosscities
andcountriesthroughavarietyofdevices.
•WiMAXisalongrangesystem,coveringmany
kilometersandistypicallyusedwhereDSLor
CableInternetAccesscannotbeused;this
couldbedifficultyinlayingoutcablesforhome
orofficeslocatedinremotelocationsbutneed
accesstotheInternet.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

21. By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

22. WI-Fi(Wireless Fidelity)
•Wi-Fiisapopulartechnologythatusesradiowavesandallowsan
electronicdevicesuchascomputersormobilephonestoexchangedata
wirelesslyoveranetwork,includinghigh-speedInternetconnections.
•Wi-Fidevicessuchaspersonalcomputer,smartphones,videogame
console,etc.canconnecttoanetworkresourcesuchasInternetthrough
adevicecalledtheWirelessAccessPoint(WAP).
•Wi-Fiisusedwherecablescannotberun(suchasoldbuildings,outdoor
areas)toprovidenetworkandInternetaccess.Wi-Ficanalsobeused
whereusersrequiremobileconnectivity.
•Wi-Ficonnectivityisusedinhome&offices,hotels,college&school
campustypicallyforInternetAccess.Shoppingmalls,coffeeshops,
resortsmostlyofferfreeorpaidWi-FiaccesstotheInternetfortheir
customers.
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

23. Assessment
1. Name any three internet service providers in
India?
2. Name any three internet browsers?
3. Name any two internet search engines?
4. What do you know about ISP?
5. What do you understand about Bandwidth?
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)

24. Thank You…
By -Amresh Tiwari, Sunbeam Suncity (School & Hostel)